Everything Filipino homeowners ask before going solar.

Standard grid-tied systems automatically shut down during a brownout — that's a safety feature, not a malfunction. Hybrid and off-grid systems with batteries can keep supplying power from stored energy, often switching over in milliseconds so you barely notice the gap.

As a rough guide, local installers typically recommend around 3kW for bills between ₱2,000–₱4,000/month, 5–6kW for ₱4,000–₱10,000/month, 10–15kW for ₱10,000–₱20,000/month, and 15–30kW with a detailed load assessment for bills above ₱20,000/month. Your actual sizing should always be based on your real electricity usage, not just your bill amount — that's exactly what our load calculation tool does.

Many sources estimate a typical payback period for Philippine residential solar of around 4–7 years, depending on your system size, electricity rate, and usage. With current 2026 electricity prices and lower solar costs, well-optimized rooftop systems can achieve payback in roughly 2–5 years for medium to high electricity users. Our solar setups are designed to optimize your system around your actual electricity demand, targeting a payback period from less than 2 years up to less than 5 years in ideal cases, by carefully sizing the system and prioritizing self-consumption for the most cost-effective approach.

Quality panels and properly engineered mounting systems are rated to withstand high wind speeds, often around or above 180 km/h, which covers most Philippine typhoons. The mounting design and roof attachment matter just as much as the panel brand itself.

Yes, though output drops. Panels generate the most power under full sun and proportionally less under clouds or heavy rain. Over a full year, the Philippines' high solar irradiance still makes systems worthwhile even accounting for the rainy season.

Panels don't produce power at night — there's no sunlight to convert. Grid-tied systems simply draw from the utility grid after dark, while hybrid and off-grid systems rely on stored battery power until it runs out.

In the Philippines, rain naturally washes off most dust. During long dry spells, a gentle rinse with water every month or two helps keep output up — avoid abrasive cleaners or high-pressure washing. We also recommend periodic visual inspections and checking that mounting hardware is still properly tightened.

Properly installed rails and mounting hardware use sealed penetrations, flashing, and waterproofing to prevent leaks. A reputable installer will explain exactly how penetrations are sealed and should stand behind that work with a roof warranty or documentation.

Most residential systems up to about 10kW are installed in one to two days — covering rail mounting, panel installation, inverter and battery setup, wiring, and commissioning.

Solar can go on galvanized iron (GI), tile, concrete slab, and some light metal roofs. The mounting hardware and method differ by roof type, and we always check structural integrity and orientation (ideally south- or west-facing) before installing.

If your roof is near the end of its life or structurally weak, it's worth repairing or replacing it first. Panels can stay in place for 20–25 years, and removing them later for roof work adds unnecessary cost.

Yes — grounding is required for grid-tied, hybrid, and off-grid systems to comply with Philippine electrical codes and utility standards. It protects your system against electrical faults, lightning surges, stray currents, and fire hazards.

Almost every metal component and electrical device: panel frames, mounting rails, combiner boxes, inverter chassis, metal conduits, and sometimes battery racks. All of these are tied into a common grounding system.

It usually involves installing grounding clips on panel frames, bonding the mounting rails, running a grounding conductor from the array to the inverter or combiner box, driving one or more copper ground rods into the soil, and integrating DC and AC grounding through the inverter and main panel. We test resistance with proper instruments to confirm it meets code.

Yes. Battery systems need careful grounding of DC circuits and the battery enclosure itself, to prevent dangerous faults and keep charge/discharge cycles safe.

For small residential systems, grounding materials and labor typically fall in the low thousands of pesos — some sources cite around ₱3,000–₱7,000, depending on system size and site conditions.

Start simple: make sure your AC and DC breakers and disconnect switches haven't tripped, check visible wiring for anything disconnected, and confirm your main power supply is actually on. A controlled power-cycle of the inverter is often the first troubleshooting step.

Note the exact code and check your inverter's manual. Basic checks include looking for shading or disconnection on your panel strings, confirming grid voltage is within range, and rebooting the inverter as the manufacturer instructs. If the error is persistent or unclear, it's best to have a qualified technician take a look.

Usually it's new shading (a tree or structure that's grown or gone up nearby), dirty panels, loose DC or AC connections, a tripped breaker, or a grid issue. A visual inspection, panel cleaning, and checking your breakers and monitoring app are good first steps.

A common approach: turn off the inverter at its AC/DC switch, switch off the solar disconnect and main solar breaker, wait 30–60 seconds, then switch the breaker and disconnect back on in reverse order, and finally turn the inverter back on. Give it 5–15 minutes to reconnect. Always check your specific manual first, and reach out for help if you're unsure.

If error messages persist after basic steps, if there's visible damage or a burning smell, if a breaker keeps re-tripping, or if you're just not comfortable working around live electrical equipment — call a trained technician. Some things aren't worth the risk of doing yourself.

Many Philippine homeowners see their monthly bill drop by 40–80%, depending on their usage pattern and how well the system is sized to their actual load. Well-designed grid-tied systems can offset a large share of daytime consumption in particular.

Grid-tied systems without batteries are cheaper and save you money mainly during the day. Batteries add resilience during brownouts and let you use solar power at night, but they raise the upfront cost. A common approach is to start grid-tied and add batteries later if outages are your main concern.

Panels typically carry performance warranties of 20–25 years, while inverters usually come with 5–10 year warranties depending on the brand and model. With proper maintenance, actual lifespans are often longer.

Yes, when the system is designed properly — with correct grounding, surge protection, and code-compliant wiring, it operates within standard voltage limits and is safe for your appliances. This is exactly why choosing a certified installer matters — unsafe DIY wiring is where real risk comes in.

Yes. Many installers, us included, recommend starting with a system sized to your budget and critical loads, then adding panels or batteries later — as long as the inverter and mounting structure are chosen with future expansion in mind from day one.

Panels and inverters can be removed and relocated, though it takes careful dismantling, transport, and reinstallation. Many homeowners choose to leave the system in place instead, since it adds property value.

If daytime usage is low, your savings may be smaller — but a system can be sized around your actual load, or paired with batteries to cover nighttime use. An energy audit and load profiling helps determine whether solar makes financial sense for your specific situation.

It depends on your roof access, building rules, and structural capacity. Some townhouses and low-rise condos allow shared rooftop systems or individual arrays, while high-rise condos often have limited options unless building management offers a centralized solution.